The Enerpac FZ1617 is a male / male nipple which has a maximum working pressure of 700 bar and two off 3/8" NPT male threads.
The Enerpac FZ1612 is a female tee with a maximum working pressure of 700 bar and three off 3/8" NPT female ports.
The Enerpac FZ1616 is a street elbow rated at 700 bar maximum working pressure and has one 3/8" NPT male thread and one 3/8" NPT female thread.
The Enerpac FZ1660 is rated at 700 bar maximum working pressure and has a fixed 3/8" NPT male thread and a 3/8" NPT female swivel thread.